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Finding the Fourth Proportional to 549,616.80, 824,425.20 and 194,666.70

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Solution

The fourth proportional to 549,616.80, 824,425.20 and 194,666.70 is: 292,000.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,616.80 : 824,425.20 = 194,666.70 : x
  2. Step 2: Convert to fraction form
    549,616.80/824,425.20 = 194,666.70/x
  3. Step 3: Cross multiply
    549,616.80x = 824,425.20 × 194,666.70
  4. Step 4: Simplify right side
    549,616.80x = 160,488,133,080.84
  5. Step 5: Solve for x
    x = 160,488,133,080.84/549,616.80
  6. Step 6: Final answer
    x = 292,000.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.